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Segment Information and Foreign Operations (Tables) | 12 Months Ended
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Dec. 31, 2014
Segment Information and Foreign Operations [Abstract] |
Revenue reported for products shipped to customers in the corresponding geographic region | The following table represents revenue amounts (in thousands) reported for products shipped to customers in the corresponding geographic region:
| Years Ended December 31,
| 2014 | 2013 | 2012
Product revenue: |  |  |  |  |  |  |  |  |
Europe (primarily Germany) | $ | 21,535 |  | $ | 21,387 |  | $ | 18,170 |
China |  | 17,451 |  |  | 24,946 |  |  | 19,815 |
North America (primarily the United States) |  | 10,292 |  |  | 10,665 |  |  | 15,391 |
Japan |  | 11,550 |  |  | 9,041 |  |  | 9,346 |
Taiwan |  | 11,464 |  |  | 10,131 |  |  | 10,985 |
Asia Pacific (excluding China, Japan and Taiwan) |  | 11,207 |  |  | 9,165 |  |  | 14,667 |
| $ | 83,499 |  | $ | 85,335 |  | $ | 88,374 |
Long-lived assets by geographic region | Long-lived assets consist primarily of property, plant and equipment, and are attributed to the geographic location in which they are located. Long-lived assets by geographic region were as follows (in thousands):
| As of December 31,
| 2014 | 2013
Long-lived assets: |  |  |  |  |  |
United States of America | $ | 136 |  | $ | 204 |
China |  | 33,726 |  |  | 37,417 |
| $ | 33,862 |  | $ | 37,621 |

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- Definition Tabular disclosure of the names of foreign countries in which material long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets are located, and amount of such long-lived assets located in that country or foreign geographic area. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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- Definition Tabular disclosure of the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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